KR200193133Y1 - Pumping apparatus for rock bolt reinforcement - Google Patents

Abstract

The present invention is a pump for the lock bolt reinforcement used in civil engineering, pump 10 which is a filling device for injecting the filling of the predetermined flow state into the hole for civil engineering, and for supplying the filling to the pump 10 It is composed of a mixer barrel 50, a hydraulic power unit 60 that is a driving source for operating the pump 10, and a control panel 70 for controlling the entire apparatus.

Therefore, with the conventional apparatus coated with a rubber material which is applied only to a non-abrasive liquid or a high abrasive liquid, it is very difficult to discharge the fluid mixed with the abrasive and cannot be discharged with a large torque. And piston type, high pressure delivery is possible, and a seal recess is provided in the piston part and elastic rubber packing is used to keep the tube or piston a little worn. It is possible to remove coarse sand and abrasives by using a valve spool to discharge coarse sand particles without trouble, and to remove flaws and abrasion factors. In the stirrer, the large rotating shaft rotates and the planetary gear The stirring blade rotates by a large amount of cement, sand, and water continuously mechanically mixed to make concrete mortar, so that no sediment is generated and continuous rotation is possible regardless of the pumping operation, and the effect of forward and reverse rotation There is.

Description

Pumping Apparatus for Rock Bolt Reinforcement

The present invention relates to a pump for the lock bolt reinforcement pump, and more particularly, to solve the problem of expensive equipment in the device that provides a variety of functions in the lock bolt reinforcement pumping device can increase the strength of the lock bolt reinforcing filler It relates to a pump for the lock bolt reinforcement.

In general, in civil engineering construction, especially in tunnel construction, holes are formed in the ground including mountain rocks. This hole opens a tunnel base hole by breaking a rock by popping a plurality of explosives such as dynamite, for example.

After drilling the foundation tunnel with a certain height and width, in order to prevent the collapse of the foundation tunnel, it is placed inside the foundation tunnel with numerous foundation bolts (lock bolts) and mesh meshes are installed. The reinforcement work will be done.

This reinforcing film construction drills the hole into which a foundation bolt is inserted in a rock bed using a rock drill or a crusher. Cement mortar is poured into the hole and the foundation bolt is inserted.

When the mortar around the foundation bolt is hardened, the foundation bolt is fixed in the rock. By installing a plurality of the foundation bolts at predetermined intervals to sufficiently withstand the concrete load sprayed on the mesh.

At this time, the foundation bolt is installed deep in the rock, so that the reinforcement film is firm, so the improvement of the installation method of the foundation bolt in the reinforcement film construction has a great influence on the construction means shaft, labor cost reduction in tunnel construction and the like.

Conventionally, as the equipment used in the foundation bolt installation, well-equipped equipment, which is a boring device into which the foundation bolt is to be inserted into the rock, the foundation bolt insertion device and the cement (or concrete) mortar injector, are well known.

Moreover, the apparatus shown in FIG. 1 is common as a cement mortar injection apparatus among the said apparatuses.

1 is an explanatory view showing a cement injection concept of a rock bolt cement mortar injection device using a conventional monopump. In this figure, reference numeral 300 denotes a stator formed in a twisted shape, and 302 denotes a rotor assembled and rotated in the stator 300. The surface of this rotor 302 is coated with a thin rubber material for hermeticity or compressibility.

In general, a mono pump refers to a fixed quantity pump consisting of a rotating rotor and a fixed stator. The rotor 302 is twisted at a complex pitch and the stator 300 is twice the rotor pitch to receive the rotor 302. Therefore, by forming a sealed line that continuously flows between the discharge and the low pressure portion and the high pressure portion generated while the rotor 302 rotates, it generates both suction and compression functions simultaneously.

At all stages, when such a sealing operation continues, a sealed space is formed constantly. This space is created by the cross section of the rotor 302 on one rotor like axes arranged at regular intervals. In addition, when the discharge pressure is newly started, the suction pressure is generated at the same time. In FIG. 1, reference numeral 304 is a shaft connected to a drive shaft for operating the rotor 302.

The cement mortar pumping apparatus using such a mono pump receives cement mortar from a separately configured cement supply hopper and fills the hole of the rock rock into which the rock bolt is inserted.

However, the conventional rock bolt reinforcing pumping device is very expensive because the function of the punching device and the lock bolt lock device is mixed, and no independent device is known for the lock bolt reinforcement.

The cement mortar injection device using the monopump was capable of injecting only cement mortar, and the strength of fixing the lock bolt was very weak. In other words, cement mortar has the advantage of fast curing speed, but because it is weak to external impact and easily broken, it is necessary to fill the rock bolt hole with concrete mortar mixed with sand to improve strength.

In the cement pump part, the stator of a mono pump is installed and used. Existing equipment such as the above uses a twisted shaft to squeeze to generate suction and also to deliver high viscosity fluids under these conditions. Such equipment cannot use seals or packings for confined spaces, and as the gap increases due to abrasion caused by abrasive particles (sand, etc.), the delivery capacity drops drastically. Because of this, high pressure discharge is not possible.

As a result, the cement mortar injection device using the monopump coated with the rubber material is required to have a separate device for a single purpose, and when the sand mixed concrete mortar is used as a filler, sand is swept over the rubber coating material. There is a problem that damages. This can cause failures during operation, which is a critical obstacle during the process.

The present invention was devised to solve this problem in view of the above-mentioned conventional problem, and solves the problem of expensive equipment in the device which gives various functions in the lock bolt reinforcement pumping device and can increase the strength of the lock bolt reinforcement filler. It is an object of the present invention to provide a pumping device for reinforcing a lock bolt for a single purpose.

1 is an explanatory view showing the cement injection concept of the cement mortar injection device for rock bolt using a conventional monopump

Figure 2 is a perspective view showing the overall configuration of the pump for rock bolt reinforcement of the present invention

Figure 3 is a front view showing the configuration of the lock bolt reinforcement pumping device of the present invention

Figure 4 is a rear view showing the configuration of the rock bolt reinforcement pumping device of the present invention

Figure 5 is a cross-sectional view showing the configuration of the mixer barrel and the pump of the lock bolt reinforcement pumping device of the present invention

6 and 7 are cross-sectional views showing the pump structure and operating state of the pump for locking bolt reinforcement of the present invention,

6 shows the operating state of the piston raising stage of the pumping system,

7 shows the piston lowering stages of the pumping system, respectively.

<Explanation of symbols for main parts of the drawings>

10: pump 12a: inlet

12: valve block 14: pump cover

20: filling discharge pipe 21: upper passage

23: operating tube 23a: upper chamber

24: lower passage 24a: lower chamber

25 outlet port 26 piston

28: valve spool 28a: inlet groove

30: distance pipe 32: rod

34 packing 35 joint

36: fixed pin 40: hydraulic cylinder assembly

42: cylinder rod 44: cylinder packing

45: piston 46: connection hole

47: hydraulic hose 50: mixer

51 shaft 52 screw drive body

52a: drive motor 52b: first drive gear

52c: 1st chain 52d: 1st driven gear

53: rotating plate 53a: inclined plate

54: stirring unit 54a: stirring blade

54b: axis of rotation 54c: top plate

54d: bottom plate 54e: second drive gear

54f: second driven gear 54g: second chain

55a, 55b: fixed plate 56: discharge passage

56a: discharge hole 56b: stopper

60: hydraulic power unit 62: base

64: scaffold 66: frame

70 control panel A: filling material (concrete mortar)

Lock bolt reinforcement pumping device of the present invention for achieving the above object,

It is a pumping device for reinforcing lock bolts used in civil works,

A pump, which is a filling device for injecting a filling in a predetermined flow state into a civil engineering hole,

A mixer barrel for filling the pump,

A hydraulic power unit which is a driving source for operating the pump,

It consists of a control panel to control the entire device.

In this configuration, the mixer barrel is generally cylindrical and includes a shaft rotatably installed in the center of the mixer barrel, a rotating plate for stirring on the shaft, and a stirring blade separately rotating on the rotating plate. It is preferable that the rotating plate is formed of an inclined plate whose lower portion is inclined downward toward the shaft, and the stirring unit 54 has an upper plate having a length close to the height of the rotating plate and the rotating plate installed at the center thereof. And it is preferable that the upper plate and the lower plate and at least two stirring blades are arranged 180 degrees to each other between the upper plate and the lower plate,

In addition, the mixer cylinder is provided with a drive motor disposed outside the mixer cylinder, a first drive gear provided on the output shaft of the drive motor, a first chain and an upper end of the shaft in order to transmit rotational force to the shaft and the rotation shaft of the stirring unit. In addition to the first driven gear installed therein, a separate second drive gear, a second driven gear for the stirring unit under the first driven gear, and a second chain spanned between these second and second driven gears. It is preferable that it is composed of, and on one side is provided with an inclined discharge passage and a discharge hole for discharging the mixed material (filled material) to the outside to the outside, the discharge hole is fitted with a stopper is configured to be opened and closed desirable.

The pump is disposed on the side of the mixer barrel, the filling discharge pipe having a plurality of chambers and passages for discharging the filling to the required portion, the distance pipe for transmitting hydraulic driving force to the filling discharge pipe side, and directly to the distance pipe It is composed of a hydraulic cylinder assembly for imparting a hydraulic driving force, the filling discharge pipe is formed on one side of the inlet and the inlet for the final discharge of the filling to the outside, the discharge passage is formed, the interior 90 by sequence control It is preferable that the valve block is formed by installing a rotatable valve spool, and a pump cover is provided on the other side, and includes an upper passage, an upper chamber, and a lower chamber for introducing or discharging the filling.

The valve spool is generally cylindrical in shape and the both sides of the surface is cut into the long groove is preferably formed in the inlet groove for introducing the filling, the distance pipe receives the driving force of the hydraulic cylinder assembly reciprocating piston in the filling discharge pipe It is preferable to have the rod provided in the end.

Therefore, the present invention having such a configuration is a conventional apparatus coated with a rubber material which is applied only to a non-abrasive liquid or a high-abrasive liquid, and to discharge a fluid mixed with abrasion-high sand having high viscosity. Although it was very difficult and could not be discharged with high torque, it was possible to send high pressure as a piston type and provided a recessed groove for seal in the piston part, and it was airtight even if the tube or piston was worn to some extent using elastic rubber packing. It is able to push out the fluid mixed with sand, and it is effective to remove defects and abrasion factors by using a valve spool in order to discharge coarse sand particles without trouble. Both strokes discharge the filling, maximizing the pumping effect. High-strength cement, sand, and water are mechanically mixed well by the stirring blades rotated by planetary gears within the rotation radius so that concrete mortar can be prevented and sediment does not occur. Rotation is possible, there is an effect that can be reversed.

Hereinafter, with reference to the accompanying drawings will be described in more detail with respect to the lock bolt reinforcement pumping device of the present invention. 2 is a perspective view showing the overall configuration of the lock bolt reinforcement pumping device of the present invention, Figure 3 is a front view showing the configuration of the lock bolt reinforcement pumping device of the present invention, Figure 4 is a lock bolt reinforcement pumping device of the present invention 5 is a cross-sectional view showing the configuration of the mixer cylinder and the pump of the lock bolt reinforcement pumping device of the present invention, Figure 6 and Figure 7 is a pump structure and operating state of the lock bolt reinforcement pumping device of the present invention 6 is a cross-sectional view showing the operating state of the piston raising step of the pumping system, Figure 7 shows the piston lowering step of the pumping system, respectively.

First, the overall configuration of the present invention will be described with reference to FIGS. 2 to 5. The lock bolt reinforcement pumping device of the present invention consists of four parts. A pump 10, which is a filling device for injecting a filling in a predetermined flow state into the lock bolt reinforcing hole, and a mixer barrel 50 for supplying a filling, which is a raw material mixed with cement + water + sand, to the pump 10. And a hydraulic power unit 60 as a driving source, and a control panel 70 for controlling the apparatus. In FIG. 5, reference numeral 52 denotes a screw drive body for mixing the filling material in the mixer barrel 50, the reference numeral 52 is a base for supporting and installing the components, 64 is a footrest, 66 is the It is a frame installed at the bottom or corner of the base 62 to maintain its shape.

With reference to FIG. 5, the structure of the said mixer container 50 and the assembly structure of the mixer container 50 and the pump 10 are demonstrated in more detail.

The mixer barrel 50 has a cylindrical shape as a whole, and a shaft 51 for rotation of stirring purpose is constructed in the center of the mixer barrel 50, and a rotating plate 53 for stirring is installed on the shaft 51. The rotating plate 53 is equipped with a stirring unit 54 having a stirring blade that rotates by a planetary gear that rotates separately.

The lower part of the rotating plate 53 is an inclined plate 53a which is inclined downward toward the shaft 51, and the stirring unit 54 is close to the height of the rotating shaft 54b and the rotating plate 53 installed at the center. Between the upper plate 54c and the lower plate 54d having a height having a length, and the upper plate 54c and the lower plate 54d, the upper and lower ends are alternately disposed 180 degrees with each other in order to increase the stirring efficiency. Consists of.

Moreover, in order to transmit rotational force to the rotating shaft 54b of the said shaft 51 and the stirring unit 54, it is provided in the drive motor 52a arrange | positioned outside the mixer cylinder 50, and the output shaft of this drive motor 52a. It consists of a first drive gear 52b, a first chain 52c serving as a power transmission means, and a first driven gear 52d provided at an upper end of the shaft 51, and stirring the lower portion of the first driven gear 52d. Separate second drive gear 54e, second driven gear 54f for unit 54, and second chain 54g spanned between these second drive gear 54e and second driven gear 54f. Consists of.

In FIG. 5, reference numeral 55a denotes a fixed plate for supporting the drive motor 52a and the shaft 51, and 55b denotes a fixed plate for supporting the rotary shaft 54b of the stirring unit 54. As shown in FIG.

An inclined discharge passage 56 and a discharge hole 56a for discharging the mixed material (filled material) to the outside are installed at one lower portion of the mixer barrel 50, and a stopper 56b is provided at the discharge hole 56a. Is fitted to be used for various types of maintenance or cleaning.

One side of the mixer barrel 50 is provided with a pump 10 which is the main component of the present invention.

The lower end of the pump 10 is disposed to be connected to the discharge passage 56 and the discharge hole 56a so as to introduce the raw material discharged into the pump 10.

Next, the structure of the reciprocating pump 10 will be described in detail with reference to FIGS. 6 to 7.

In these drawings, reference numeral 20 denotes a filler discharge pipe for discharging the filler to a required portion, 30 is a distance pipe, and 40 is a hydraulic cylinder assembly for directly applying hydraulic driving force to the distance pipe 30.

The valve block 12 and the pump cover 14 are installed at left and right sides of the filling discharge pipe 20, and a filling discharge pipe 20 having a tube shape is disposed therebetween. One side of the valve block 12 is formed with an inlet port 12a for receiving a charge transported through the discharge passage 56 and the discharge hole 56a, and the spool seat so that the valve spool 20 is located therein. Is formed.

The valve spool 28 has a cylindrical shape and a valve spool 28 having an inlet groove 28a for introducing the filling by cutting both sides of the surface is installed. The valve spool 28 is assembled in the valve block 12 so as to be rotatable by 90 °, and by rotating the valve spool 28, the upper passage 21 is connected to the outlet passage 25 as described later. And at the same time connect the lower passage 24 to the inlet 12a, the upper passage 21 to the inlet 12a, or the lower passage 24 to the outlet passage 25. .

The filling discharge pipe 20 has two passages. That is, it consists of the operation pipe 23 which operates the rod 32 mentioned later, and the upper passage 21 which is the discharge pipe which discharges the filling A by the action of the rod 32 of this operation pipe 23. As shown in FIG.

The pump cover 14 connects the upper passage 21 and the upper chamber 23a, and the distance pipe 30 maintains a distance from the pump cover 14 and the hydraulic cylinder assembly 40 or supports the parts. . A rod 32 is installed in the distance pipe 30 and a cylinder rod 42 is disposed in the hydraulic cylinder assembly 40. In addition, these rods 32 and the cylinder rods 42 are connected to each other by the joint 35 and the fixing pins 36, the hydraulic cylinder assembly 40 is a high-pressure hose to the hydraulic power unit 60 Is connected to receive the control of the hydraulic power unit (60). Reference numeral 24a denotes a lower chamber.

At the end of the rod 32, a piston 26 having a structure including a packing is installed in close contact with the inner diameter of the filling discharge pipe 20, and the seal 32 is sealed on the sliding surface of the piston 32 and the rod 32 for sealing. Use seals or packings to ensure that no gaps are passed through the gaps.

The rod 32 is driven in connection with the hydraulic cylinder assembly 40, and when the rod 32 reaches the bottom dead center or the top dead center, the rod 32 is automatically switched by the control of the hydraulic power unit 60 to move the hydraulic cylinder assembly 40. The piston 26 is operated by this drive. Each of these parts is fixed so as not to move by the fixing bolt.

In FIGS. 6 and 7, reference numeral 34 denotes a packing installed to prevent leakage of air when the rod 32 reciprocates in the hole of the pump cover 14, 44 is a cylinder packing for airtightness, and 45 is the hydraulic cylinder. The pistons 46 and 47 assembled in the assembly 40, the connection holes for supplying or discharging the hydraulic oil to hydraulically drive the pistons 44 and 45, and the hydraulic hose A denotes the filling.

Next, the operation of the lock bolt reinforcement pumping device of the present invention configured as described above will be described. First, referring to FIG. 5, when the first driving gear 52b is rotated by the driving force of the motor 52a, the driving force is transmitted to the first driven gear 52d by the first chain 52c, and the shaft 51. Rotate).

As the shaft 51 rotates, the second driving gear 54e, the second chain 54g, and the second driven gear 54f, which are components of the stirring unit 54, rotate while the rotating plate 53 rotates. In order to increase the stirring efficiency, the stirring blades 54a having the upper and lower ends staggered 180 degrees are rotated while revolving about the shaft 51 to sufficiently stir the raw material as the filler in the mixer barrel 40.

The stirred filling material flows into the inclined discharge passage 56 and the discharge hole 56a for discharging the mixed material (filling material) to the outside under one side of the mixer barrel 40 and flows through the inlet 12a to the pump. (10) flows into.

Fillings introduced into the inlet (12a) flows into the valve spool 28 side sequence controlled by a control device of a separate configuration (not shown) and flows into the lower passage (24) side through the inlet groove (28a).

Now, it is assumed that the innumerable points in Figs. 6 and 7 are the filling A made of cement mixed with sand, and this filling A is filled in each chamber at a predetermined pressure. Referring to FIG. 6, an operation in which the filling A is introduced into the pump 10 and discharged to the outside through the outlet passage 25 will be described.

When the piston 26 is moved up by the hydraulic cylinder assembly 40, the valve spool 28 is switched as shown in FIG. 6, and the lower chamber 24a is in communication with the inlet 12a through the lower passage 24. The upper chamber 23a is connected to the outlet passage 25 through the upper passage 21. At this time, the concrete mortar [fill (A)] in the interior of the mixer barrel 50 is filled into the lower chamber (24a) and filled, while the filler (A) filled in the upper chamber (23a) through the upper passage (21) It is forcibly discharged to the outlet passage 25.

Subsequently, an operation in which the filling A is introduced into the pump 10 and discharged to the outside through the outlet passage 25 will be described with reference to FIG. 6.

When the piston 26 reaches the top dead center, the valve spool 28 is rotated by 90 ° by the hydraulic power unit 60 to switch each passage, and the upper chamber 23a opens the upper passage 21. It is connected to the inlet 12a through the lower chamber 24a is connected to the outlet passage 25 through the lower passage 24, the piston 26 begins the downstroke. At this time, the concrete mortar in the interior of the mixer barrel 50 is filled into the upper chamber (23a) is filled and the concrete mortar filled in the lower chamber 24a is forcibly discharged to the outlet passage 25 through the lower passage (24).

In addition, when the piston 26 reaches the bottom dead center, as illustrated in FIG. 7, the valve spool 28 is rotated by 90 ° as shown in FIG. 5 to switch each passage by the hydraulic power unit 60. Repeatedly repeated, the piston 26 is forced to discharge the concrete mortar (filling (A)) during the up and down stroke.

As such, the present invention provides a simple structure in the pump while discharging the filling (A) in both the up and down strokes of the piston 26. Therefore, the pumping effect is twice as effective as that of the conventional pump. It is integrated, high pressure discharge is possible, and it is possible to discharge cement each time when the pump is operated up and down, that is, continuous discharge, cement discharge is irrespective of the size of sand particles, and it is easy to maintain and maintain, and also easy to manufacture and always cement , Mix water and sand.

As described above, according to the lock bolt reinforcement pumping device of the present invention, a conventional apparatus coated with a rubber material which is applied only to a liquid having no abrasion, a liquid having a high viscosity, or the like, is a fluid mixed with abrasive sand. It was very difficult to discharge the gas, and it could not be discharged with a large torque.However, it is possible to send high pressure as a piston type, and to install a seal recess in the piston part and to use a rubber packing with elasticity, As it can maintain the air tightness even though it is worn down enough, it can push out the sand mixed fluid and eliminate the flaw and abrasion factor by preventing the fluid flow by using valve spool to discharge coarse sand particles without trouble. , The pump discharges the filling in both the upper and lower strokes of the piston, and maximizes the pumping effect. The stirring shaft rotates by the planetary gear and rotates the entire shaft again, so that a large amount of cement, sand, and water can be mechanically mixed well so that it can become concrete mortar. Irrespective of the continuous rotation, it is possible to forward and reverse rotation.

Claims (4)

It is a pumping device for reinforcing lock bolts used in civil works, A pump 10 which is a filling device for injecting a filling in a predetermined flow state into a hole for civil engineering; A mixer barrel 50 for supplying a filling material to the pump 10, Hydraulic power unit 60 that is a drive source for operating the pump 10, Locking bolt reinforcement pumping device, characterized in that consisting of a control panel 70 for controlling the entire device. The method of claim 1, wherein the mixer barrel 50, It is generally cylindrical and has a shaft 51 rotatably installed in the center of the mixer barrel 50, a rotating plate 53 for stirring on the shaft 51, and a stirring rotating separately on the rotating plate 53. Locking bolt reinforcement pumping device, characterized in that consisting of a stirring unit having a blade (54). The method of claim 1, wherein the pump 10, It is disposed on the side of the mixer barrel 40, the filling discharge pipe 20 having a plurality of chambers and passages for discharging the filling to the required portion, and the distance pipe for transmitting a hydraulic driving force to the filling discharge pipe (20) ( 30) and a hydraulic cylinder assembly (40) for imparting a hydraulic driving force directly to the distance pipe (30). The method of claim 3, wherein the filling discharge pipe 20, On one side thereof, an inlet 12a for introducing the filling A and a lower passage 24 and an outlet passage 25 for final discharge of the filling A to the outside are formed, and the inside is rotated by 90 ° by sequence control. A valve block 12 formed by installing possible valve spools 20, The pump cover 14 is installed on the other side, Locking bolt reinforcement pumping device, characterized in that consisting of the upper passage (21), the upper chamber (23a), the lower chamber (24a) for introducing or discharging the filling (A).